New England Patriots head coach Bill Belichick holds up the Vince Lombardi Trophy as he celebrates after the Patriots defeated the Seattle Seahawks 28-24 in NFL Super Bowl XLIX football game Sunday, Feb. 1, 2015, in Glendale, Ariz. (AP Photo/Patrick Semansky)

From left, New England Patriots owners Robert Kraft and Jonathan Kraft, head coach Bill Belichick and quarterback Tom Brady hold their championship trophies prior to the ceremonial first pitch at the home opener baseball game between the Boston Red Sox and the Washington Nationals at Fenway Park in Boston, Monday, April 13, 2015. (AP Photo/Elise Amendola)

New England Patriots quarterback Tom Brady, left, celebrates with head coach Bill Belichick after defeating the Miami Dolphins 41-13 in an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

New England Patriots head coach Bill Belichick celebrates with New England Patriots wide receiver Danny Amendola (80) after an NFL divisional playoff football game against the Baltimore Ravens Saturday, Jan. 10, 2015, in Foxborough, Mass. The Patriots won 35-31 to advance to the AFC Championship game. (AP Photo/Steven Senne)

New England Patriots head coach Bill Belichick is doused by sports drink after NFL Super Bowl XLIX football game against the Seattle Seahawks Sunday, Feb. 1, 2015, in Glendale, Ariz. The Patriots won 28-24. (AP Photo/Matt Slocum)

New England Patriots head coach Bill Belichick looks on during an NFL football game against the Green Bay Packers at Lambeau Field on Sunday, November 30, 2014 in Green Bay, Wisconsin. Green Bay won 26-21. (AP Photo/Aaron M. Sprecher/NFL)

New England Patriots head coach Bill Belichick looks on during an NFL football game against the Cleveland Browns at Gillette Stadium on Sunday December 8, 2013 in Foxborough, Massachusetts. New England won 27-26. (Aaron M. Sprecher/NFL)

New England Patriots head coach Bill Belichick, right, celebrates with his team during the second half of NFL Super Bowl XLIX football game against the Seattle Seahawks on Sunday, Feb. 1, 2015, in Glendale, Ariz. (AP Photo/Elise Amendola)

New England Patriots head coach Bill Belichick looks on during an NFL football game against the Denver Broncos at Gillette Stadium on Sunday, November 2, 2014 in Foxborough, Massachusetts. New England won 43-21. (Aaron M. Sprecher/NFL)

New England Patriots head coach Bill Belichick and New England Patriots quarterback Tom Brady (12) during the NFL Super Bowl XLIX football game against the Seattle Seahawks Sunday, Feb. 1, 2015, in Glendale, Ariz. The New England Patriots won 28-24. (Ric Tapia/NFL)

New England Patriots head coach Bill Belichick looks on prior to Super Bowl XLIX against the Seattle Seahawks at University of Phoenix Stadium on Sunday, February 1, 2015 in Glendale, Arizona. The Patriots won 28-24. (Perry Knotts/NFL)

New England Patriots head coach Bill Belichick celebrates with his team after the NFL Super Bowl XLIX football game against the Seattle Seahawks Sunday, Feb. 1, 2015, in Glendale, Ariz. The Patriots won the game 28-24. (AP Photo/Matt Slocum)

New England Patriots head coach Bill Belichick smiles after the Patriots scored the winning touchdown against the New Orleans Saints in the fourth quarter of an NFL football game Sunday, Oct.13, 2013, in Foxborough, Mass. The Patriots won 30-27. (AP Photo/Steven Senne)

New England Patriots head coach Bill Belichick during a team practice in Foxborough, Mass., Wednesday, Jan. 14, 2015. The Patriots face the Indianapolis Colts in the AFC Championship. (AP Photo/Charles Krupa)

Giants defensive coordinator Bill Belichick is carried off the field on the shoulders of Thomas Johnson, left, and Greg Lasker after the Giants shutout the Washington Redskins to win the NFC Championship, 17-0, at the Meadowlands in East Rutherford, N.J., Jan. 12, 1987. (AP Photo/Susan Ragan)

New England Patriots Head coach Bill Belichick on the sidelines in action against the Chicago Bears on Sunday October 26, 2014 at Gillette Stadium in Foxboro Mass. (Damian Strohmeyer AP Images)

New England Patriots head coach Bill Belichick answers questions during a news conference Thursday, Jan. 29, 2015, in Chandler, Ariz. The Patriots play the Seattle Seahawks in NFL football Super Bowl XLIX Sunday, Feb. 1. (AP Photo/Mark Humphrey)

New England Patriots quarterback Tom Brady, left, celebrates with head coach Bill Belichick after defeating the Miami Dolphins 41-13 in an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

New England Patriots head coach Bill Belichick watches as players stretch during practice Wednesday, Jan. 28, 2015, in Tempe, Ariz. The Patriots play the Seattle Seahawks in NFL football Super Bowl XLIX Sunday, Feb. 1, in Glendale, Ariz. (AP Photo/Mark Humphrey)

New England Patriots head coach Bill Belichick holds the championship trophy after the NFL football AFC Championship game Sunday, Jan. 18, 2015, in Foxborough, Mass. The Patriots defeated the Colts 45-7 to advance to the Super Bowl against the Seattle Seahawks. (AP Photo/Matt Slocum)

New England Patriots Head Coach Bill Belichick signals for time out against the Chicago Bears on Sunday October 26, 2014 at Gillette Stadium in Foxboro Mass. (Damian Strohmeyer AP Images)

New England Patriots football head coach Bill Belichick speaks during an NFL football news conference at Gillette Stadium, Saturday, Jan. 24, 2015, in Foxborough, Mass., where he defended the way his team preps its game balls. (AP Photo/Steven Senne)

New England Patriots head coach Bill Belichick argues a call made by officials during an NFL football game against the Green Bay Packers Sunday Nov. 30, 2014, in Green Bay, Wis. (AP Photo/Matt Ludtke)

New England Patriots head coach Bill Belichick on the sidelines during the NFL AFC Championship game between the Indianapolis Colts and the New England Patriots on Sunday, January 18, 2015 at Gillette Stadium, Foxborough, Massachusetts. The Patriots beat the Colts 45-7. (AP Images /David Drapkin).

New England Patriots head coach Bill Belichick walks downfield during the closing minutes of the second half of the NFL Super Bowl XLVI football game against the New York Giants, Sunday, Feb. 5, 2012, in Indianapolis. The Giants won 21-17. (AP Photo/Jeff Roberson)

New England Patriots football head coach Bill Belichick celebrates with Niko Koutouvides (90) at Gillette Stadium in Foxborough, Mass., Sunday, Jan. 22, 2012 after they defeated the Baltimore Ravens to win the AFC Conference Championship title.The Patriots will face the New York Giants in Super Bowl XLVI on Feb. 5 in Indianapolis. (AP Photo/Elise Amendola)

Green Bay Packers quarterback Aaron Rodgers (12) is congratulated by New England Patriots head coach Bill Belichick after an NFL football game on Sunday Nov. 30, 2014, in Green Bay, Wi. The Packers won the game, 26-21 (AP Photo/Greg Trott)

New England Patriots head coach Bill Belichick, center, celebrates a touchdown in the third quarter of an NFL football game against the Denver Broncos, Monday, Oct. 20, 2008, in Foxborough, Mass. (AP Photo/Michael Dwyer)

New England Patriots coach Bill Belichick holds the challenge flag during the third quarter of the Super Bowl XLII football game against the New York Giants at University of Phoenix Stadium on Sunday, Feb. 3, 2008, in Glendale, Ariz. Officials overturned the original call, and ruled that the Giants had had 12 players on the field. (AP Photo/Paul Sancya)

New England Patriots head coach Bill Belichick smiles during a news conference Sunday, Jan. 27, 2008, in Scottsdale, Ariz. The Patriots face the New York Giants in Super Bowl XLII on Sunday, Feb. 3, 2008. (AP Photo/Stephan Savoia)

New England Patriots head coach Bill Belichick hoists the Lamar Hunt trophy after his team defeated the San Diego Chargers 21-12 to win the of the AFC Championship football game in Foxborough, Mass., Sunday, Jan. 20, 2008, and advance to the Super Bowl. (AP Photo/Michael Dwyer)

Head Coach Bill Belichick of the New England Patriots yells toward the field during the game against the Buffalo Bills on November 18, 2007 at Ralph Wilson Stadium in Orchard Park, New York. The Pats defeated the Bills 56-10. (AP Photo/Paul Spinelli)

New England Patriots head coach Bill Belichick is doused after the Patriots beat the Philadelphia Eagles 24-21 in Super Bowl XXXIX on Sunday, Feb. 6, 2005, at Alltel Stadium in Jacksonville, Fla. At right is Belichick's father, Steve. (AP Photo/David J. Phillip)

New England Patriots head coach Bill Belichick raises his arms with seconds left in the AFC Divisional playoff game against the Indiinapolis Colts as injured defensive end Richard Seymour, right, looks on, Sunday, Jan. 16, 2005, in Foxboro, Mass. The Patriots won 20-3. (AP Photo/Michael Dwyer)

New England Patroits Head coach Bill Belichick in Super Bowl XXXVIII against the Carolina Panthers at Reliant Stadium on February 1,2004 in Houston Texas.The Patriots defeated the Panthers 32-29. (AP Photo/Tom DiPace)

New England Patriots coach Bill Belichick calls to his team from the sideline during the AFC championship game against the Indianapolis Colts Sunday, Jan. 18, 2004, in Foxboro, Mass. The New England Patriots take on the Carolina Panthers in Super Bowl XXXVIII on Sunday, Feb. 1, 2004 in Houston. (AP Photo/Jim Rogash)